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Polyetherimide (PEI) is a thermoplastic polymer, containing cyclic amide. PEI is a polyimide condensation polymer derived from the bifunctional carboxylic anhydrides and primary diamines.
P 2086 (OTTO) Polyetherimide Cas 61128-46-9 - used as matrix in the fabrication of various composites PEI/ BaTi4O9 composites, PEI/glass fiber compositesm.